/usr/include/podofo/doc/PdfFontFactory.h is in libpodofo-dev 0.9.4-6.
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* Copyright (C) 2007 by Dominik Seichter *
* domseichter@web.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Library General Public License as *
* published by the Free Software Foundation; either version 2 of the *
* License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
* *
* In addition, as a special exception, the copyright holders give *
* permission to link the code of portions of this program with the *
* OpenSSL library under certain conditions as described in each *
* individual source file, and distribute linked combinations *
* including the two. *
* You must obey the GNU General Public License in all respects *
* for all of the code used other than OpenSSL. If you modify *
* file(s) with this exception, you may extend this exception to your *
* version of the file(s), but you are not obligated to do so. If you *
* do not wish to do so, delete this exception statement from your *
* version. If you delete this exception statement from all source *
* files in the program, then also delete it here. *
***************************************************************************/
#ifndef _PDF_FONT_FACTORY_H_
#define _PDF_FONT_FACTORY_H_
#include "podofo/base/PdfDefines.h"
#include "PdfFont.h"
namespace PoDoFo {
class PdfFontMetrics;
class PdfVecObjects;
enum EPdfFontFlags {
ePdfFont_Normal = 0x00,
ePdfFont_Embedded = 0x01,
ePdfFont_Bold = 0x02,
ePdfFont_Italic = 0x04,
ePdfFont_BoldItalic = ePdfFont_Bold | ePdfFont_Italic,
ePdfFont_Subsetting = 0x08
};
/** This is a factory class which knows
* which implementation of PdfFont is required
* for a certain font type with certain features (like encoding).
*/
class PODOFO_DOC_API PdfFontFactory {
public:
/** Create a new PdfFont object.
*
* \param pMetrics pointer to a font metrics object. The font in the PDF
* file will match this fontmetrics object. The metrics object is
* deleted along with the created font. In case of an error, it is deleted
* here.
* \param nFlags font flags or'ed together, specifying the font style and if it should be embedded
* \param pEncoding the encoding of this font.
* \param pParent the parent of the created font.
*
* \returns a new PdfFont object or NULL
*/
static PdfFont* CreateFontObject( PdfFontMetrics* pMetrics, int nFlags,
const PdfEncoding* pEncoding, PdfVecObjects* pParent );
/** Create a new PdfFont from an existing
* font in a PDF file.
*
* \param pLibrary handle to the FreeType library, so that a PdfFontMetrics
* can be constructed for this font
* \param pObject a PDF font object
*/
static PdfFont* CreateFont( FT_Library* pLibrary, PdfObject* pObject );
/**
* Creates a new base-14 font object (of class PdfFontType1Base14) if
* the font name (has to include variant) is one of the base 14 fonts.
* The font name is to be given as specified (with an ASCII hyphen).
*
* \param pszFontName ASCII C string (zero-terminated) of the font name
* \param eFlags one flag for font variant (Bold, Italic or BoldItalic)
* \param pEncoding an encoding compatible with the font
* \param pParent a vector of PDF objects to be the font object's owner
*/
static PdfFont* CreateBase14Font( const char* pszFontName,
EPdfFontFlags eFlags,
const PdfEncoding * const pEncoding,
PdfVecObjects *pParent );
/** Try to guess the fonttype from a the filename of a font file.
*
* \param pszFilename filename of a fontfile
* \returns the font type
*/
static EPdfFontType GetFontType( const char* pszFilename );
private:
// prohibit instantiation of all-methods-static factory from outside
PdfFontFactory();
/** Actually creates the font object for the requested type.
* Throws an exception in case of an error.
*
* \returns a new PdfFont object or NULL
*/
static PdfFont* CreateFontForType( EPdfFontType eType, PdfFontMetrics* pMetrics,
const PdfEncoding* const pEncoding,
bool bEmbed, bool bSubsetting, PdfVecObjects* pParent );
};
};
#endif /* _PDF_FONT_FACTORY_H_ */
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